研究生类
公务员类
工程类
语言类
金融会计类
计算机类
医学类
研究生类
专业技术资格
职业技能资格
学历类
党建思政类
博士研究生考试
公共课
专业课
全国联考
同等学历申硕考试
博士研究生考试
考博英语
考博英语
单选题Some television programs have to be fundamentally changed on account of an industrial ______.
进入题库练习
单选题The price of the coal will vary according to how far it has to be transported and how expensive the freight ______ are. A. payments B. charges C. funds D. prices
进入题库练习
单选题Watch a baby between six and nine months old, and you will observe the basic idea of geometry being learned. Once the baby has mastered the idea that space is three dimensional, it reaches out and begins grasping various things, that the ideas of sets and numbers are formed. So far, so good. But now an ominous development takes place. The nerve fibers in the brain separate themselves in such a way that the baby begins to hear sounds very exactly. Soon it picks up language. And it is then brought into direct communication with grown-ups. From this point on, it is usually downhill all the way for mathematics, because the child now becomes exposed to all the rubbish words and beliefs of the born. Nature, having done very well by the child to this point, having permitted it the luxury of thinking for itself for eighteen months, now gives it up to the unreasonable conventions and beliefs of society. But at least the child knows something of geometry and peaceful days, no matter what vicissitudes(兴衰变迁)it may suffer later on. The main reservoir of mathematical ability in any society is thus possessed by children who are about two years old, children who have just learned to speak freely.
进入题库练习
单选题He has lost the use of limbs but he is still in possession of all his mental ______. A. faculties B. facilities C. installations D. apparatuses
进入题库练习
单选题 In width of scope, Yeats far exceeds any of his contemporaries. He is the only poet since the 18th century who has been a public man in his own country and the only poet since Milton who has been a public man at a time when his country was involved in a struggle for political liberty. This may not seem an important matter, but it is a question whether the kind of life lived by poets for the last two hundred years or so has not been one great reason for the drift of poetry away from the life of the community as a whole, and the loss of touch with tradition. Once the life of contemplation has been divorced from the life of action, or from real knowledge of men of action, something is lost which it is difficult to define, but which leaves poetry enfeebled and incomplete. Yeats responded with all his heart as a young man to the reality and the romance of Ireland's struggle but he lived to be completely disillusioned about the value of the Irish rebellion. He saw his dreams of liberty blotted out in horror by "the innumerable clanging wings that have put out the moon". It brought him to the final conclusion of the futility of all discipline that is not of the wlaole being, and of "how base at moments of excitement are minds without culture". But he remained a man to whom the life of action always meant something very real.
进入题库练习
单选题At least since the Industrial Revolution, gender roles have been in a state of transition. As a result, cultural scripts about marriage have undergone change. One of the more obvious (21) has occurred in the roles that women (22) . Women have moved into the world of work and have become adept at meeting expectations in that arena, (23) maintaining their family roles of nurturing and creating a(n) (24) that is a haven for all family members. (25) many women experience strain from trying to "do it all," they often enjoy the increased (26) that can result from playing multiple roles. As women's roles have changed, changing expectations about men's roles have become more (27) . Many men are relinquishing their major responsibility (28) the family provider. Probably the most significant change in men's roles, however, is in the emotional (29) of family life. Men are increasingly (30) to meet the emotional needs of their families, (31) their wives. In fact, expectations about the emotional domain of marriage have become more significant for marriage in general. Research on (32) marriage has changed over recent decades points to the increasing importance of the emotional side of the relationship, and the importance of sharing in the "emotion work" (33) to nourish marriages and other family relationships. Men and women want to experience marriages that are interdependent, (34) both partners nurture each other, attend and respond to each other, and encourage and promote each other. We are thus seeing marriages in which men's and women's roles are becoming increasingly more (35) .
进入题库练习
单选题{{B}}Passage Two{{/B}} Grooming and personal hygiene have been around for ages. It's hard to imagine a time when people weren't concerned with taking care of their appearance and their bodies. Perhaps these practices started when Adam first took a bath and combed his hair before going on a date with Eve. Or maybe they began when Eve put on some herbal makeup to make herself more beautiful. No matter where they started, grooming and personal hygiene have become an important part of everyone's daily routine. You might think that all modern societies would have the same grooming and personal hygiene practices. After all, doesn't everybody take baths? Most people do recognize the need for hygiene, which is the basis for cleanliness and health--and a good way to keep one's friends. Grooming practices include all the little things people do to make themselves look their best, such as combing their hair and putting on makeup. However, while most modern people agree that these things are important, people in different cultures take care of themselves in different ways. There used to be an old joke in America that people should take a bath once a week, whether they need one or not. In fact, though, Americans generally take a bath--or more commonly, a shower--every day. But in contrast to some cultures, most Americans get their shower in the morning, so they can start the day fresh. And instead of going to a beauty parlor for a shampoo, many Americans prefer to wash and style their own hair. So if Americans have a "bad hair day", they have no one to blame but themselves. But most people in America do head for the beauty parlor or barber shop occasionally for a haircut, a perm or just some friendly conversation. Americans are known for having very sensitive noses. In America, "B. O." (body odor) is socially unacceptable. For that reason, Americans consider the use of deodorant or anti-perspiration a must. Ladies often add a touch of perfume for an extra fresh scent. Men may splash on after-shave lotion or manly-smelling cologne. Another cultural no--no in America is bad breath. Americans don't like to smell what other people ate for lunch--especially onions or garlic. Their solution? Mouthwash, breath mints and even brushing their teeth after meals. Some of the cultural variations in grooming practices result from physical differences between races. Whereas many Asian men have little facial hair, Westerners have a lot. As a result, most American men spend some time each day shaving or grooming their facial hair. Beards and mustaches are common sights in America, although their popularity changes from generation to generation. Most American men who wear facial hair try to keep it nicely trimmed. American women, on the other hand, generally prefer not to be hairy at all. Many of them regularly shave their legs and armpits. Americans put great value on both grooming and personal hygiene. For some people taking care of themselves has become almost a religion. As the old saying goes, "Cleanliness is next to godliness." Whether or not being clean and well-groomed brings one closer to God, it certainly brings one closer to others. Americans look down on people who don't take care of themselves, or who "let themselves go". To Americans, even if we don't have much to work with, we have to make the best of what we've got.
进入题库练习
单选题{{B}}Passage 3{{/B}} Industrial production managers coordinate the resources and activities required to produce millions of goods every year in the United States. Although their duties vary from plant to plant, industrial production managers share many of the same major responsibilities. These responsibilities include production scheduling, staffing, procurement and maintenance of equipment, quality control, inventory control, and the coordination of production activities with those of other departments. The primary mission of industrial production managers is planning the production schedule within budgetary limitations and time constraints. They do this by analyzing the plant's personnel and capital resources to select the best way of meeting the production quota. Industrial production managers determine, often using mathematical formulas, which machines will be used, whether new machines need to be purchased, whether overtime or extra shifts are necessary, and what the sequence of production will be. They monitor the production run to make sure that it stays on schedule and correct any problems that may arise. Industrial production managers also must monitor product standards. When quality drops below the established standard, they must determine why standards are not being maintained and how to improve the product. If the problem relates to the quality of work performed in the plant, the manager may implement better training programs, reorganize the manufacturing process, or institute employee suggestion or involvement programs. If the cause is substandard materials, the manager works with the purchasing department to improve the quality of the product's components. Because the work of many departments is interrelated, managers work closely with heads of other departments such as sales, procurement, and logistics to plan and implement company goals, policies, and procedures. For example, the production manager works with the procurement department to ensure that plant inventories are maintained at their optimal level. This is vital to a firm's operation because maintaining the inventory of materials necessary for production ties up the firm's financial resources, yet insufficient quantities cause delays in production. A breakdown in communications between the production manager and the purchasing department can cause slowdown and a failure to meet production schedules. Just-in-time production techniques have reduced inventory levels, making constant communication among the manager, suppliers, and purchasing departments even more important. Computers play an integral part in this coordination. They also are used to provide up-to-date information on inventory, the status of work in progress, and quality standards. Production managers usually report to the plant manager or the vice president for manufacturing, and may act as liaison between executives and first line supervisors. In many plants, one production manager is responsible for all aspects of production. In large plants with several operations, there are managers in charge of each operation, such as machining, assembly, or finishing.
进入题库练习
单选题The journalists and Camera crews began to ______in the heat as they stood waiting for the president to appear.
进入题库练习
单选题In 1982, Hitachi was {{U}}indicted for{{/U}} stealing confidential documents from IBM. As part of a court settlement, the company pa id IBM hundreds of millions of dollars.
进入题库练习
单选题Scientists have known for more than two decades that cancer is a disease of the genes. Something scrambles the DNA inside a nucleus, and suddenly, instead of dividing in a measured fashion, a cell begins to copy itself furiously. Unlike an ordinary cell, it never, stops. But describing the process isn't the same as figuring it out. Cancer cells are so radically different from normal ones that it's almost impossible to untangle the sequence of events that made them that way. So for years researchers have been attacking the problem by taking normal cells and trying to determine what changes will turn them cancerous - always Without success. According to a report in the current issue of Nature, a team of scientists based at M. I .T.'s Whitehead Institute for Biomedical Research has finally managed to make human ceils malignant -a feat they accomplished with two different cell types by inserting just three altered genes into their DNA. While these manipulations were done only in lab dishes and won't lead to any immediate treatment, they appear to be a crucial step in understanding the disease. This is a "landmark paper," wrote Jonathan Weitzman and Moshe Yaniv of the Pasteur Institute in Paris, in an accompanying commentary. The dramatic new result traces back to a breakthrough in 1983, when the Whitehead's Robert Weinberg and colleagues showed that mouse cells would become cancerous when subjected to two altered genes. But when they tried such alterations on human cells, they didn't work. Since then, scientists have learned that mouse cells differ from human cells in an important respect: they have higher levels of an enzyme called telomerase. That enzyme keeps caplike structures called telomeres on the ends of chromosomes from getting shorter with each round of cell division. Such shortening is part of a cell's aging process, and since cancer cells keep dividing forever, the Whitehead group reasoned that making human cells more mouselike might also make them cancerous. The strategy worked. The scientists took connective-tissue and kidney cells and introduce three altered genes—one that makes cells divide rapidly; another that disables two substances meant to rein in excessive division; and a third that promotes the production of telomerase, which made the cells essentially immortal. They'd created a tumor in a test tube. "Some people believed that telomerase wasn't that important," says the Whitehead's William Hahn, the study's lead author. "This allows us to say with some certainty that it is./
进入题库练习
单选题The conversation was so interesting that we were ______ of the lateness of the hour.
进入题库练习
单选题{{B}}Passage Three{{/B}} The earth is witnessing an urban revolution, as people worldwide crowd into towns and cities. In 1800 only five percent of the world's population were urban dwellers; now the proportion has risen to more than forty-five percent, and by the year 2010 more people will live in towns and cities than in the countryside. Humanity will, for the first time, have become a predominantly urban species. Though the world is getting more crowded by the day, absolute numbers of population are less important than where people concentrate and whether these areas can cope with them. Even densities, however, tell us nothing about the quality of the infrastructure'-roads, housing and job creation, for example--or the availability of crucial services. The main question, then, is not how many people there are in a given area, but how well their needs can be met. Density figures have to be set beside measurements of wealth and employment, the quality of housing and the availability of education, medical care, clean water, sanitation and other vital services. The urban revolution is taking place mainly in the Third World, where it is hardest to accommodate. Between 1950 and 1985 the number of city dwellers grew more than twice as fast in the Third World as in industrialized countries. During this period, the urban population of the developed world increased from 477 million to 838 million, less than double; but it quadrupled in developing countries, from 286 million to 1.14 billion. Africa's urban population is racing along at five percent a year on average, doubling city numbers every fourteen years. By the turn of the century, three in every four Latin Americans will live in urban areas, as will two in every five Asians and one in every three Africans. Developing countries will have to increase their urban facilities by two thirds by then, if they are to maintain even their present inadequate levels of services and housing. In 1940 only one out of every hundred of the world's people lived in a really big city, one with a population of over a million. By 1980 this proportion had already risen to one in ten. Two of the world's biggest cities, Mexico and Sao Paulo, are already bursting at the seams-- and their populations are doubling in less than twenty years. About a third of the people of the Third World's cities now live in desperately overcrowded slums and squatter settlements. Many are unemployed, uneducated, undernourished and chronically sick. Tens of millions of new people arrive every year, flocking in from the countryside in what is the greatest mass migration in history. Pushed out of the countryside by rural poverty and drawn to the cities in the hope of a better life, they find no houses waiting for them, no water supplies, no sewerage, no schools. They throw up makeshift hovels, built of whatever they can find: sticks, fronds, cardboard, tar-paper, straw, petrol tins and, if they are lucky, corrugated iron. They have to take the land no one else wants; land that is too wet, too dry, too steep or too polluted for normal habitation. Yet all over the world the inhabitants of these apparently hopeless slums show extraordinary enterprise in improving their lives. While many settlements remain stuck in apathy, many others are gradually improved through the vigour and co-operation of their people, who turn flimsy shacks into solid buildings, build school, lay out streets and put in electricity and water supplies. Governments can help by giving the squatters the right to the land that they have usually occupied illegally, giving them the incentive to improve their homes and neighborhoods. The most important way to ameliorate the effects of the Third World's exploding cities, however, is to slow down migration. This involves correcting the bias most governments show towards cities and towns and against the countryside. With few sources of hard currency, though, many governments in developing countries continue to concentrate their limited development efforts in cities and towns, rather than rural areas, where many of the most destitute live. As a result, food production falls as the countryside tildes ever deeper into depression. Since the process of urbanization concentrates people, the demand for basic necessities, like food, energy, drinking water and shelter, is also increased, which can exact a heavy toll on the surrounding countryside. High-quality agricultural land is shrinking in many regions, taken out of production because of over-use and mismanagement. Creeping urbanization could aggravate this situation, further constricting economic development. The most effective way of tackling poverty, and of stemming urbanization, is to reverse national priorities in many countries, concentrating more resources in rural areas where most poor people still live. This would boost food production and help to build national economies more securely. Ultimately, though, the choice of priorities comes down to a question of power. The people of the countryside are powerless beside those of the towns; the destitute of the countryside many starve in their scattered millions, whereas the poor concentrated in urban slums pose a constant threat of disorder. In all but a few developing countries the bias towards the cities will therefore continue, as will the migrations that are swelling their numbers beyond control.
进入题库练习
单选题Away from their profession, scientists are inherently no more honest or ethical than other people. But in their profession they work in an arena that puts a high ______ on honesty. A.conviction B.inference C.caution D.premium
进入题库练习
单选题Sustainable development is the one that meets the needs of the present without ______ the ability of future generations to meet their own needs.
进入题库练习
单选题More than 100____cats that used to roam the streets in a Chinese province have now been collected and organized into a tram to fight rodents that are destroying crops.
进入题库练习
单选题The federal court has been putting pressure on the state to adhere to the population caps in the decree. A. encounter B. stick to C. prepare D. anticipate
进入题库练习
单选题Edison tested more than one thousand materials to see if they could ______ electric current and glow. A. bring B. make C. carry D. produce
进入题库练习
单选题I don"t think Johnson will succeed in his new job, for he is not ______ to do that type of work.
进入题库练习
单选题The ______ emphasis on examinations is by far the worst form of competition in schools.
进入题库练习